When were the two major extinction periods that amphibians have survived?
Explain to me plz thanks
in the 1950s and in 2007
What makes a scientific observation different from day to day observations?
ILL GIVE BRAINLIEST !!
Fossils of a microscopic organism are found in rocks determined to be over 3.5 billion years old. Identify TWO types of evidence that would help answer the question of whether the organism was photosynthetic
4. ______________ and _______________ are needed by our body in small quantities
Answer:
vitamins and minerals.
Please Help me with this question!!
1. Which of the following statements best describes sunspots?
Sunspot appear and disappear in 24 year cycles.
Sunspots are dark areas of intense electromagnetic activity.
Sunspots are located in the core of the sun.
Sunspots are gaseous clouds that sometimes shoot into space.
Answer:
Sunspots are dark areas of intense electromagnetic activity.
Explanation:
sunspots appear and disappear in 24 year cycles?? I believe
Science PLZZZZZZZ!!!!!
Answer:
Gravity and inertia
Explanation:
C. Gravity and inertia
Tissues are composed of groups of:
A.
unicellular organisms.
B.
specialized cells.
C.
specialized organs.
D.
organisms.
Answer:
B
Explanation:
Tissues are made up of specialised cells
In which layers of Earth do convection currents occur?
Answer:
Convection currents in the Earth occur in the mantle.
Explanation:
Answer:
The mantle
Explanation:
im smart :)
how does the amount of precipitation affect the tundra and tropical rain forest species?
The amount of precipitation affects the number of species due to water being a primary resource for survival of all living organisms.
What is the function of a smooth er?
please answer correctly
Answer: To produce proteins for cell
Can someone help me??
Answer:
S6 = E1
S5 = E6
S4 = E5
S3 = E3
S2 = E4
S1 = E2
Explanation:
If your body temperature rises, all of the
following will occur EXCEPT
Answer:
idu
Explanation:
picture
Answer:
what are the options given for the question
Part1: Compare the relative concentrations (amount of GtC) of at least six (6) components of the carbon cycle
(e.g. The ____ has less GtC carbon than the ______ .)
Part 2: Explain how the total amount of matter is conserved during the carbon cycle.
hint-the earth is a closed system
Answer:
Explanation:
PART 2 : The Law of Conservation of Matter states that matter cannot be created or destroyed. The carbon cycle is an example of the Law because the same carbon atoms are being recycled through the carbon cycle.
Because elements are neither created nor destroyed under normal circumstances, individual atoms that compose living organisms have long histories as they cycle through the biosphere. In this depiction, a carbon atom moves from coal buried beneath the Earth's surface to a power plant and into the atmosphere. It eventually dissolves in water and is taken up by an algal cell, where it is then consumed by a copepod.
In the carbon cycle, in what form are carbon atoms generally returned to the atomosphere? carbon dioxide b carbon monoxide simple sugars methane
Answer:
The carbon cycle is a process where carbon is removed and returned to the atmosphere. The ways of returning carbon to the atmosphere
Explanation:
Homologous chromosomes are chromosomes that are the same? true or false
Answer:
False
Explanation:
The 22 pairs of homologous chromosomes contain the same genes but code for different traits in their allelic forms since one was inherited from the mother and one from the father. So humans have two homologous chromosome sets in each cell, meaning humans are diploid organisms.
(0.2 pts) Some foods that are rich in complex carbohydrates can be difficult to digest. Gas often forms as the foods are slowly digested by bacteria in the
large intestine. The advertisement is for a nutritional supplement that prevents intestinal gas.
Gas Trouble?
Supplement
Take our supplement when
eating meals high in
complex carbohydrates to
prevent the discomfort of
intestinal gas.
Which of the following represents evidence that could be used to support the claims about this product?
o complex carbohydrates are found in vegetables and grains, which are good sources of fiber, vitamins, antioxidants and minerals. Vegetables are grains known to reduce the
risk of heart disease
Some rutritional supplements provide vitamins and minerals that are missing from a person's diet These types of nutritional supplements contain important nutrients that
reduce the risk of malnutrition
Consuming enzymes specific for carbohydrate digestion helps the body digest complex carbohydrates more quickly in the stomach and small intestine
Some nutritional supplements add beneficial bacteria to a person's diet. These bacteria populate the stomach and prevent carbohydrate digestion
Answer:
El consumo de enzimas específicas para la digestión de carbohidratos ayuda al cuerpo a digerir los carbohidratos complejos más rápidamente en el estómago y el intestino delgado.
Algunos suplementos nutricionales agregan bacterias beneficiosas a la dieta de una persona. Estas bacterias pueblan el estómago y previenen la digestión de carbohidratos.
Explanation:
Answer: c. c: ...............................................................
Which of the following groups of organisms uses sunlight to convert carbon dioxide and water into sugar and oxygen?
a. producers
b. decomposers
c. carnivores
d. herbivores
The group of organisms which uses sunlight to convert carbon dioxide and water into sugar and oxygen are producers. Thus, the correct option is A.
What are Producers in the ecosystem?Producers are any kind of green plants present in the ecosystem. Green plants make their own food by using the sunlight (solar energy) and carbon dioxide gas from the atmosphere with the energy to make sugar. The plant uses this sugar (carbohydrate), also called as glucose to make many different products, such as wood, leaves, roots, and bark.
This process through which plants produce their food is called photosynthesis. Photosynthesis occurs only in the plants which have chlorophyll pigment (chloroplast).
Therefore, the correct option is A.
Learn more about Ecosystem here:
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Compare and contrast between a human and an alligator life cycle.
Answer:
The human body constantly develops and changes throughout the human life cycle, and food provides the fuel for those changes. The major stages of the human lifecycle include pregnancy, infancy, the toddler years, childhood, puberty, older adolescence, adulthood, middle age, and the senior years.
where as,
Growth depends greatly on the surrounding environment, including temperature, and sexual maturity is reached at approximately 6 feet long. The life span varies greatly for these large reptiles, averaging 35 to 50 years for wildalligators and 60 to 70 years for crocodiles.
Explanation:
please mark as brainlist answers
Are state changes chemical or physical changes? Provide an example of a state change and explain why it is a chemical or physical change.
Answer:
physical
Explanation:
example: water freezing into ice
there is no change in the chemical properties, frozen water is still water
How does pollution affect marine life? a. Pollution causes a decrease in phytoplankton populations and therefore a decrease in the occurrence of algal blooms. b. Pollution causes destruction of coral reefs, which are important sources of shelter and breeding for marine animals. c. Soaps, detergents, and plastics in the ocean decrease the acidity of ocean water, leading to a decrease in carbonate levels. d. Pollution affects organisms close to the shoreline, but does not affect marine organisms far from the shore.
Answer:
b
Explanation:
According to the question, Pollution causes destruction of coral reefs, which are important sources of shelter and breeding for marine animals.
How does pollution affect marine life?Fish, seabirds, sea turtles, and marine mammals can become entangled in or ingest plastic debris, causing suffocation, starvation, and drowning.
Thus, the option "B" is correct.
To learn more about the pollution click here:
https://brainly.com/question/23857736
1. An environment can support only as many organisms
as the available energy, minerals, and oxygen will
allow. Which term is best described by this statement?
A) homeostatic control
B) carrying capacity
C) biological feedback
D) biological diversity
Answer:
The answer is carrying capacity
Explanation:
Had a test
An environment can support only as many organisms as the available energy, minerals, and oxygen will allow. The term best described by Carrying capacity
Carrying Capacity
It is the average population density or population size of a species below which its number tend to increase and above which its number tend to decrease because of shortage of resources. The carrying capacity is different for each species in a habitat because of that species particular food, shelter, and social requirements.
Learn more about Carrying capacity here:
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difference between speed and lvelocity in three point
Explanation:
(1)speed is scalar quantity
(1) velocity is vector quantity
(2)speed can never be negative or zero and it is always positive
(2) velocity can be negative or zero and it can be positive
(3)speed is time taken to travel a specific distance
(3) velocity is time taken to travel minimum distance from 1 point to other point
(4)speed=distance upon time
(4) velocity = displacement (minimum distance between 2 points ) upon time
did u understand if not then comment
Which best summarizes the effects of mutations on organisms?
A Mutations are sometimes helpful, sometimes harmful, and sometimes neutral.
B Mutations are usually harmful, sometimes neutral, and never helpful.
C Mutations are sometimes neutral, sometimes helpful, and never harmful.
D Mutations are always harmful, never helpful, and never neutral.
Answer:
A Mutations are sometimes helpful, sometimes harmful, and sometimes neutral.
Explanation:
I did the test.
Answer:
A. Would be answer!
Explanation:
Hope this help!
There are approximately 259 hectares per square mile. How many deer could a square mile of forest of mature American chestnut trees support for a year if they were the only organism consuming their nuts?
Answer:
25 deers
Explanation:
According to studies conducted by wildlife experts, a single deer needs roughly 25 acres of land in order to survive comfortably. Therefore we first need to find out how many acres are in a hectare, which based on a quick search online we see that 25 acres equal 10.11 hectares which is what a single deer needs to survive. Now we divide the total amount of hectares by the hectares a single deer needs in order to find out how many deers can survive on this total amount of land.
259 / 10.11 = 25.618
Finally, we can see that the 259 hectares can maintain roughly 25 deers.
A lentil plant with spotted seeds was crossed with another that had dotted seeds. The F1 plants turned out to have seeds that had spots and dots. What could be the reason?
Answer:
Lentil seed pattern is affected by codominance.
Explanation:
Lentil seed pattern is affected by codominance.
Why does the us have limited government
Answer:
The U.S. Constitution achieved limited government through a separation of powers: "horizontal" separation of powers distributed power among branches of government (the legislature, the executive, and the judiciary, each of which provide a check on the powers of the other); "vertical" separation of powers (federalism) ...
is chlorine gas a polar or nonpolar covalent bond
Pretty sure its non-poaler (definitly sure) :)
Answer:
Explanation:
Covalent bonds are very similar to chlorine gas. Which is also known as (C12). Both of these atoms share and hold tightly onto their electrons.
The hydrogen atom has a positive charge becauseIt cannot hold as tightly to the negative electron bones. Covalent molecules with this type of uneven charge distribution are polar.
why does the structure of a protein depend on the sequence of the DNA?
Answer:
Explanation:
The Rules of Protein Structure. The function of a protein is determined by its shape. The shape of a protein is determined by its primary structure (sequence of amino acids). The sequence of amino acids in a protein is determined by the sequence of nucleotides in the gene (DNA) encoding it.
48:47
Which of the following factors would have the smallest impact on a population’s size?
a.
the total number of organisms
b.
the available water supply
c.
the variety of organisms
d.
adequate shelter